Ask question

Ask question

All categories

3 years ago

9

1/3(4 + 18)-2²PLIS I need help :(

1 answer:

liraira [26]3 years ago

5 0

Answer:

10/3

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

1/3(4 + 18) - 2²

<u>Step 2: Evaluate</u>

(Parenthesis) Add: 1/3(22) - 2²
Exponents: 1/3(22) - 4
Multiply: 22/3 - 4
Subtract: 10/3

You might be interested in

Why do you think city streets often are designed to be parallel or perpendicular?

White raven [17]

Answer:

Step-by-step explanation: Most urban designers incorporate a diagonal street cutting through the regular grid to create interesting spaces, squares, plazas, to provide relief and add character as can be seen at Manhattan Times Square created by Broadway cutting the grid at an angle.

7 0

3 years ago

Read 2 more answers

The function A=A_oe^{-0.01155x} A = A o e − 0.01155 x models the amount in pounds of a particular radioactive material stored in

vivado [14]

They are essentially asking us to solve:

$357=900e^{-0.01155x} \implies\\ \frac{357}{900}=e^{-0.01155x} \implies\\ \ln{\frac{357}{900}}=-0.01155x \implies \\ x\approx 80.1$

Solving this equation for x tells us that it will take around 80.1 years for the materials in the vault to reduce to 357 pounds.

4 0

3 years ago

Read 2 more answers

Which table represents a function?

Anastaziya [24]

Answer:

The first box

Step-by-step explanation:

In a linear function you cannot have 2 of the same X numbers. Ex) You cannot have 2 -4's in the X row. In the Y, you may. But never the X.

3 0

3 years ago

What is the area of the triangle given in the picture?

Ne4ueva [31]

Answer:

The area of the given triangle is 6 sq units.

Step-by-step explanation:

The area of triangle is given by

Area =

$\frac{1}{2} \times base \times height$

Here base is 6units and height is 2units

hence area= (6*2)/2= 6 units

3 0

4 years ago

Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil.

oksian1 [2.3K]

Answer:

0.36 = 36% probability that the land has oil and the test predicts it

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

45% chance that the land has oil.

This means that $P(A) = 0.45$

He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil.

This means that $P(B|A) = 0.8$

What is the probability that the land has oil and the test predicts it?

This is $P(A \cap B)$ . So

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

$P(B \cap A) = P(B|A)*P(A) = 0.8*0.45 = 0.36$

0.36 = 36% probability that the land has oil and the test predicts it

5 0

3 years ago